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Tailoring unconventional actuators using compliant transmissions: design methods and applications

机译：使用兼容的变速器量身定制非常规执行器：设计方法和应用

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Matching a drive system to the force-displacement characteristics of the load is the cardinal principle in electromechanical systems design. Unconventional actuation schemes; such as piezoelectric, electrostatic, and shape-memory alloys (SMAs), seem to exhibit certain limitations in terms of power density, stroke length, bandwidth, etc., when one attempts to employ them directly to an application. Integrating them with mechanical transmission elements so that the integrated actuator-transmission system matches the load characteristics of the application can enhance the utility of such unconventional actuators. Conventional mechanical devices are sometimes difficult to integrate with unconventional actuating schemes. For instance, the two-dimensional nature of microelectromechanical systems (MEMS) and no-assembly constraints arising from their batch fabrication make it difficult to fabricate, assemble, and integrate a conventional micromechanism with an electrostatic actuator. However, a monolithic "solid-state" mechanical transmission device enables easy integration. The paper presents a systematic method of designing such unconventional mechanisms. The paper presents a generalized methodology for designing compliant mechanisms. Our systematic synthesis formulations provide a mathematical basis for designing compliant mechanisms for: (1) topology generation and (2) size and shape optimization. Design examples illustrate integration with electrostatic, piezoelectric, and SMA actuators for MEMS and smart-structures applications.
机译：将驱动系统与负载的力-位移特性相匹配是机电系统设计的基本原理。非常规驱动方案；当人们尝试将它们直接应用于应用时，例如压电，静电和形状记忆合金（SMA）等在功率密度，行程长度，带宽等方面似乎表现出某些限制。将它们与机械传动元件集成在一起，使集成的执行器-传动系统与应用的负载特性相匹配，可以增强此类非常规执行器的实用性。传统的机械设备有时很难与非常规的驱动方案集成在一起。例如，微机电系统（MEMS）的二维性质以及由于其批量制造而产生的无组装约束条件使得难以将传统的微机械与静电致动器一起制造，组装和集成。但是，单片式“固态”机械传动装置可以轻松集成。本文提出了一种设计这种非常规机制的系统方法。本文介绍了一种用于设计兼容机制的通用方法。我们系统的综合公式为设计用于以下方面的兼容机制提供了数学基础：（1）拓扑生成和（2）尺寸和形状优化。设计实例说明了与静电，压电和SMA执行器的集成，用于MEMS和智能结构应用。

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